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From: Bruno Martínez (br1_at_[hidden])
Date: 2006-07-14 11:26:56

On Fri, 14 Jul 2006 12:16:56 -0300, Andy Little
<andy_at_[hidden]> wrote:

> Is there any chance of writing some sort of quaternions for dummies
> documentation?
> Basically I am the dummy when it comes to maths , unless I have some job
> to
> perform like getting point x and rotating it about axis a through angle
> b.
> Unfortunately the higher level stuff is putting the quaternion library
> out of my
> reach. I think my only use for quaternions is for rotation. My basic use
> case
> (maybe like Janek) would be
> 1) some way to construct the quaternion from (say) an axis angle
> representation
> of the rotation
> 2) some way to apply it to a 3D point.

Jaap Suter ( has an introduction to geometric
algebra in his home page. GA subsumes quaternions. He was also working
in a C++ library that handled GA objects, including their units.


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